19618221

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{307}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 12315219

約数列:

[1, 3, 7, 17, 21, 51, 119, 179, 307, 357, 537, 921, 1253, 2149, 3043, 3759, 5219, 6447, 9129, 15657, 21301, 36533, 54953, 63903, 109599, 164859, 384671, 934201, 1154013, 2802603, 6539407, 19618221]

約数ペア:

[(1, 19618221), (3, 6539407), (7, 2802603), (17, 1154013), (21, 934201), (51, 384671), (119, 164859), (179, 109599), (307, 63903), (357, 54953), (537, 36533), (921, 21301), (1253, 15657), (2149, 9129), (3043, 6447), (3759, 5219)]